Under the UDAN (Ude Desh ka Aam Naagrik) scheme, the first flight was operated between:

The first flight under the UDAN Regional Connectivity Scheme (RCS) was launched on 27 April 2017, operating between Shimla and Delhi. It was inaugurated by Prime Minister Narendra Modi. UDAN, which stands for Ude Desh ka Aam Naagrik, is a Government of India scheme aimed at making air travel affordable and widespread by connecting under-served and unserved airports across the country. Under the scheme, airfares on regional routes are capped, and airlines receive Viability Gap Funding (VGF). The scheme has significantly expanded regional air connectivity.